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Finding the Fourth Proportional to 123,069.80, 184,550.70 and 56,487.80

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Solution

The fourth proportional to 123,069.80, 184,550.70 and 56,487.80 is: 84,706.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,069.80 : 184,550.70 = 56,487.80 : x
  2. Step 2: Convert to fraction form
    123,069.80/184,550.70 = 56,487.80/x
  3. Step 3: Cross multiply
    123,069.80x = 184,550.70 × 56,487.80
  4. Step 4: Simplify right side
    123,069.80x = 10,424,863,031.46
  5. Step 5: Solve for x
    x = 10,424,863,031.46/123,069.80
  6. Step 6: Final answer
    x = 84,706.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.